Windshield wiper



July 1o, 192s.

S. P. KIENAST ET\AL WINDSHIELD WIPER Filed July 11. 1927 lwwfwbofcs @btu/Majo l Patented July UNITED STA-.Tas

N 1,676,561 PATENT orifice.

SELDEN 1. xrmusr, or BATTLE cnam, am) CLARENCE E. BRAKE, or Pan-MA), anoniem.

Applicationl led July 11,

-The invention relates to devices commonly known as windshield wipers although the present invention constitutes somewhat more than a wiper, as provision is made :for electrically Iheating apart of the device to meltv ice nd snow from the windshield when desire It is the object oftleinvention to provide an exceptionally simple. inexpensive and' being supplemented by the accompanying,

drawings.

Fig. 1 is aside elevation showing the device applied. B.

Fig. 2 is an enlarged longitudinal section partly in elevation.

Figs. 3 and 4 are lower end views illustrating the heated scraper projected and retracted, respectively.

Fig. 5 is an'enlarged horizontal sectional view through the heated scraper.

.The drawings above briefly described, illustrate the preferred form of` construction and while this construction will be hereinafter specifically explained, it is to be understood that the prsent disclosure is illustrative rather thanl limiting, in a number o respects. Y l

The numeral 6 denotes a vertically elongated body which maybe operated in any esired manner. For purposes of'l illustration, an arm 7 is shown having a clip 8 atits lower end pivoted to the body 6 as at 9, the

f upper end of said arm being connected to an operating 'shaft 1Q whichA may have manual or automatic operating means, automatic mechanism bein vindicated in a general way f at 11. The sha 10 may be mounted in any of the'usual ways, either above the frame 12 of a windshield 13 or passin through said frame, as, will be readily un erstood. y f The body 6 iscom osed of two channelshaped sheet metal strips 1li- 143, the flanges of these strips being spaced apart and holding squilgees 15, while the Harige-connecting portions of said strips are tightly secure 1927. Serial No. 204,981,

together bysoldering or in any other desired manner.

Slidably received between the side vflanges I of the channel-shaped body 6, isa windshield scraper 16 whose body portion may/ well I 'i mote from its scraping edge 17, said stud .passing through the centralportion of a relatively large opening 19 in the iange connecting ortion of the body 6. This stud 'passes a so through an opening 20 in a. U- shaped yoke 21 which straddles and is secured to the body 6. A coiled compression spring 2 2 surrounds the stud 18 and asses through the opening 19, one end o said spring abutting the scraper 16 while the other end abuts the yoke 21. A thumb-nut 23 is threaded upon the outer end of stud 18 and by tightening this thumb-nut, the entire scraper 16 may be drawn into the channelshaped body 6, so that onl the squilgees 15 may contact with the win hield 13, as will be clear from Fig. 4. B loosening -nut 23, spring 22 -comes into p ay 'to project `the scraper 16 and yieldably hold it in contact with the windshield.

Disposed within and vsuitably insulated from the scraper 16, isan electrlcal heating unit' 24. One end of this unit, 1n the present showing, is provided with a binding post 25 for a current su ply wire 26, whereas the other end of sai unitgmay be grounded to the scraper 16 as Vdenoted at 2.7 in Figs. 2;

' 3 and 4. Current from the battery of the windshield wiper and the automobile, to the ground of the machine and hence back battery. v

Whenever" only the use ofY thesquilgees 15 is necessary, the/entire scraper and heater 16 may be withdrawn intothe-body 6, as shown in F ig. 4and the switch for the heating unit 24 willgthen of course'be opened.l

to the Whenever an ice or snow storm .is encoun- \tered.A however, the thumb-nut 23 may be loosened, causing spring l22 to project the sera r and heater 16 against the windshie d, either beyond the" squilgees 15 or flush therewith, as desired.l When now thc switch for the heater is closed, it promptly becomes eiciently heated toffimelt the ice on` from the details disclosedr-that'they are preferably followed. However, within the scope of the invention as claimed, variations may be made as hereinbefore suggested.

Moreover, it is to be understood that the word squilgee hereinz used, is not to be considered as 'limiting the invention to the use of a rubber or analogous strip, as in some instances, a mere pad of felt or analogous material may be employed.

What is claimed is c 1. In a windshield wiper, a carrying body,` a squilgee carried by said body, an electrically heated scraper carried by said body, and means whereby saidA scraper may be projected relative to said squilgee into contact with a Windshield or withdrawn from` such contact. y

2. In a windshield wiper, a carrying body of channel form, a squilgee carried by a side of said body, an electrically heated scraper slidably mounted Within said body, and means whereby said scraper may be projected relative to said squilgee from the body for contactwith a windshield or may be retracted into the body from such contact.

3. In a windshield wiper, a channel-shaped body, a squilgce carried by said body, an electrically heated scraper slidably mounted in said body and having a lstud projecting in the oppositedirection from its'scraping edge, and means associated with said stud for effecting projection and retraction of said scraper relative to said squilgee to bring it, into or out of play as desired.

4. In a windshield \vipe 1',a channel-shaped body, a squilgee carriedby said body, an electrically heated scraper slidably mounted in said bodyand having a stud projecting inthe opposite direction from its scraping edge, spring means acting upon said scraps er infa direction to project it to operative position-relative to said, squilgee, and a nut threaded on said 'stud forv retracting said scraper againstv the action of said spring Y means when desired.

5. In a windshield Wiper, a channel-shaped body formed of two channel-shaped metal strips having their side flanges spaced apart and'having their fiance-connecting portions secured together, squi gees securely held in the spaces-between said side llanges and projecting from the latter, an electrically heated scraper slidably mountedv in said hollow body, and means whereby said scraper may beprojected or retracted relative to said squilgee for contact with or disengagement from the windshield.` i y In testimony whereof We have hereunto ailixed'our signatures.

i SELDEN P. KIENAST.

CLARENCE E. DRAKE. 

